1995•Applied Physics LettersRequires access

Intracavity frequency doubling of a continuous wave Ti:sapphire laser with over 70% conversion efficiency

Wang-Long Zhou, Yusuke Mori, T. Sasaki, S. Nakai, K. Nakano, Shinji Niikura, Bruce B. Craig

Abstract

Efficient tunable ultraviolet generation by intracavity frequency doubling of a continuous wave Ti:sapphire laser was demonstrated. Maximum output is obtained of 460 mW at 398 nm corresponding to a total infrared-to-ultraviolet conversion efficiency over 70%. High conversion efficiency was resulted from a critically phase-matched, temperature-tuned lithium triborate crystal and a novel resonator design. The observed laser damage of the crystal coatings is also discussed.

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Key concepts: Lithium triborate, Energy conversion efficiency, Materials science, Sapphire, Laser, Continuous wave, Ultraviolet, Crystal (programming language)